See below

Create task - for each of the high-level tasks normally called the summary task, include at least 5 tasks below each summary task.  make sure the tsk under the summary task is indented.  add how many days it will take for each task.  make sure that each task as a successors and predecessors except for the first and last week.  The first task only has a successor the last task only has a predecessor.  make sure there is a milestone for each summary task.